Abnormal sound detection device and abnormal sound detection method applied to abnormal sound detection device

Abstract

The invention provides an abnormal sound detection device and an abnormal sound detection method applied to the abnormal sound detection device. The abnormal sound detection device is used for detecting a peripheral interface device, and comprises a vibration simulation mechanism which is used for generating a vibration force, so that the peripheral interface device generates a vibration sound wave according to the vibration force; the mobile audio collection device is used for collecting the vibration sound wave and generating a vibration audio signal according to the vibration sound wave; and the control and analysis device is electrically connected with the vibration simulation mechanism and the mobile audio collection device, and is used for outputting an abnormal sound detection signal to control the vibration simulation mechanism to generate the vibration force and inputting the abnormal sound detection signal to the mobile audio collection device according to the vibration audio signal generated by the mobile audio collection device. Detecting and discriminating whether there is an abnormal sound phenomenon; wherein the abnormal sound detection signal comprises a mobile control sub-signal and a test sub-signal which are respectively used for outputting to the mobile audio collection device and the vibration simulation mechanism.

Description

Technical Field

[0001] The present invention relates to an abnormal sound detection device and an abnormal sound detection method used therein, and in particular to an abnormal sound detection device used to detect whether a peripheral interface device has an abnormal sound phenomenon and an abnormal sound detection method used therein. Background Art

[0002] Currently, various consumer electronic information or communication products on the market are becoming increasingly thinner and lighter, and most of them have various audio and video functions to meet people's consumption and entertainment needs.

[0003] As for laptop computers, their development trend is to become thinner and lighter, so the configuration of various internal components is getting closer to each other or against each other. For example, almost all general laptop computers are equipped with a peripheral interface device: a key mechanical structure for users to input keys; in addition, laptop computers also usually have a built-in sound device for sound playback, wherein the sound device is an active component including a plurality of speaker units, which is used to drive the plurality of speaker units to convert various normal sound signals (for example, music) into a vibration wave in a vibration manner, thereby generating sounds audible to the human ear.

[0004] Furthermore, due to the limitation of the internal space, the location of the aforementioned sound effect device is often close to the aforementioned key mechanical structure. Therefore, the vibration force generated by multiple speaker units (for example, the vibration force of the speaker unit caused by a certain frequency generated by a certain part of a certain song) will vibrate the various mechanical structures in the key mechanical structure that are passive components (for example, the scissor foot structure located under the key) to form a vibration sound wave. In this way, for some electronic products with abnormal assembly or design quality, it is easy to generate unexplained high-frequency resonant audio, and the human ear can often easily detect this abnormal sound phenomenon.

[0005] Therefore, how to timely detect the above-mentioned abnormal sounds such as high-frequency resonance audio with unknown causes during the production process of various thin and light electronic products and eliminate or improve them in advance has become a technical issue that the industry wants to solve.

[0006] Based on this, the industry currently generally uses a known abnormal sound detection device to detect the assembly quality status of electronic products during the production process; wherein, a vibration simulation mechanism in the known abnormal sound detection device can be used to accommodate a passive component to be detected (for example, a key mechanical structure belonging to a peripheral interface device), and then the vibration simulation mechanism will generate a corresponding vibration force according to an abnormal sound detection signal with certain specific detection frequencies, so that the peripheral interface device generates a vibration sound wave according to the vibration force, and then, a small number of audio collectors (for example, a single or a single row of microphones) are used to collect the vibration sound wave, and a vibration audio signal is generated, and finally the vibration audio signal is detected and analyzed to determine whether there is an abnormal sound phenomenon.

[0007] The problem with the known technology is that if the small amount of audio collectors used to collect the vibration sound waves and generate the vibration audio signals in the aforementioned known abnormal sound detection device are set in a fixed manner, since the distances between the various mechanism areas in the passive component to be detected (for example, the various keys arranged in different areas in the key mechanical structure) and the aforementioned fixed audio collector are different from each other, the collected vibration audio signals are not easy to finely distinguish the various mechanism areas of the passive component to be detected that actually generate the abnormal sound. Or, it may be because the sound collection coverage range of the aforementioned known fixed audio collector is inconsistent with the size of the passive component to be detected, resulting in the problem of some abnormal sounds being missed.

[0008] In order to solve the above situation, the setting mode of the known abnormal sound detection device is changed to collect the vibration audio signal in a movable manner to ensure that the full-size area of ​​the passive component to be detected can be detected. However, the main defect of using this mobile audio collector is that if the abnormal sound detection signal used therein is an abnormal sound detection signal of a sweep nature, since such a signal usually refers to a test frequency range gradually increasing from zero to 20KHZ or gradually decreasing from 20KHZ to zero within a certain time range, but because the aforementioned mobile audio collector usually adopts an uninterrupted continuous forward movement to collect sound In this way, it is possible that a certain mechanism area (for example, the key area on the left side of the key mechanical structure) produces an abnormal sound according to the test frequency, but at this time the aforementioned mobile audio collector has moved away from the aforementioned mechanism area and arrived at another mechanism area (for example, the key area on the right side of the key mechanical structure). In other words, because the aforementioned mobile audio collector has moved away from a better sound receiving range of the aforementioned mechanism area, the aforementioned mobile audio collector will inevitably no longer be able to detect the mechanism area that produces the abnormal sound. As a result, the accuracy of abnormal sound detection of electronic products will be reduced and the detection quality will be reduced.

[0009] Therefore, for this type of abnormal sound detection device using a mobile audio collection device, how to improve its adaptability to different types of abnormal sound detection signals to improve the accuracy of abnormal sound analysis and improve the detection quality has become the main technical issue to be solved by the present invention. Summary of the invention

[0010] One of the main purposes of the present invention is to provide an abnormal sound detection device and an abnormal sound detection method used therein for collecting abnormal sound in a mobile manner and being adaptable to different types of abnormal sound detection signals.

[0011] Another object of the present invention is to provide an abnormal sound detection device and an abnormal sound detection method used therein for collecting abnormal sounds in a mobile manner and efficiently and quickly performing abnormal sound analysis of vibration audio signals.

[0012] The present invention relates to an abnormal sound detection device, which is used to detect a peripheral interface device, comprising: a vibration simulation mechanism, which has a mechanism body that can accommodate the peripheral interface device, and the vibration simulation mechanism can generate a vibration force, so that the peripheral interface device generates a vibration sound wave according to the vibration force; a mobile audio collection device, which is close to the mechanism body, and the mobile audio collection device is used to collect the vibration sound wave and generate a vibration audio signal according to the vibration force; and a control and analysis device, which is electrically connected to the vibration simulation mechanism and the mobile audio collection device, and the control and analysis device is used to output an abnormal sound detection signal to control the vibration simulation mechanism to generate the vibration force, and input The vibration audio signal generated by the mobile audio collection device is used to detect and analyze whether there is an abnormal sound phenomenon; wherein the abnormal sound detection signal includes a movement control sub-signal and a test sub-signal, which are respectively used to output to the mobile audio collection device and the vibration simulation mechanism; wherein the movement control sub-signal is used to enable the mobile audio collection device to form a plurality of movement trajectory segments and a plurality of stop points spaced between the plurality of movement trajectory segments above the peripheral interface device in a walk / stop movement mode, and the corresponding vibration audio signal generated during the period when the mobile audio collection device reaches the plurality of stop points is used as a vibration audio identification effective section.

[0013] Preferably, the peripheral interface device includes at least one key mechanical structure.

[0014] Preferably, the vibration simulation mechanism includes: a mechanism body for accommodating the peripheral interface device; and a vibration generator adjacent to the mechanism body and electrically connected to the control and analysis device, wherein the vibration generator is used to generate the vibration force according to the test sub-signal and transmit it to the peripheral interface device in the mechanism body.

[0015] Preferably, the mechanism body at least includes an upper cover and a base, so that the peripheral interface device is disposed between the upper cover and the base; wherein the vibration generator is adjacent to or attached to the base.

[0016] Preferably, the test sub-signal may be one of a sweep test sub-signal and a pink noise test sub-signal, so that the vibration simulation mechanism generates the vibration force, and the peripheral interface device generates the vibration sound wave according to the vibration force.

[0017] Preferably, the mobile audio collection device has a plurality of mobile audio collection units, and any group of mobile audio collection units has at least one audio collector; wherein the at least one audio collector can be any one of a microphone and a sound guide tube.

[0018] Preferably, the mobile audio collection device has a driving motor, which is used to execute the go / stop movement mode according to the movement control sub-signal, so that the multiple groups of mobile audio collection units form multiple movement trajectories above a test mechanism area of ​​the peripheral interface device; wherein any movement trajectory includes multiple movement trajectory segments and multiple stop points spaced between the multiple movement trajectory segments.

[0019] Preferably, the moving distances of any one of the plurality of moving track segments are equal, or the moving distances of at least two of the plurality of moving track segments are unequal.

[0020] Preferably, the mobile audio collection device forms a starting moving trajectory segment and an ending moving trajectory segment before entering the area of ​​the mechanism to be tested of the peripheral interface device and after leaving the area of ​​the mechanism to be tested, respectively; wherein any moving trajectory sequentially includes the starting moving trajectory segment, multiple moving trajectory segments and multiple stop points spaced between the multiple moving trajectory segments, and the ending moving trajectory segment.

[0021] Preferably, the moving distance of any one of the starting moving track segment and the ending moving track segment are both equal and smaller than the moving distance of any one of the plurality of moving track segments.

[0022] Preferably, the moving time required for the mobile audio collection device in any one of the multiple moving trajectory segments, the staying time required for the mobile audio collection device at any one of the multiple stopping points, and the moving time required for the mobile audio collection device in any one of the starting moving trajectory segment and the ending moving trajectory segment are all equal to each other.

[0023] Preferably, the control and analysis device collects the corresponding vibration audio recognition effective sections generated by the movable audio collection device during multiple stop points, and combines them to form a vibration audio recognition signal to determine whether the vibration audio recognition signal has an abnormal sound phenomenon.

[0024] The present invention also relates to an abnormal sound detection method, which is applied to detect a peripheral interface device, and at least includes the following steps: (a) providing a vibration simulation mechanism that can accommodate the peripheral interface device; (b) arranging a mobile audio collection device close to the vibration simulation mechanism; wherein the mobile audio collection device has multiple groups of mobile audio collection units, and any group of mobile audio collection units has at least one audio collector; (c) according to a movement control sub-signal in an abnormal sound detection signal, driving the multiple groups of mobile audio collection units to form multiple movement tracks in a walk / stop movement mode above a mechanism area to be tested of the peripheral interface device; wherein any movement track includes multiple movement track segments and a plurality of stop points spaced between the multiple movement track segments; (d) according to a movement control sub-signal in the abnormal sound detection signal A test sub-signal is used to make the vibration simulation mechanism generate a vibration force, and the peripheral interface device generates a vibration sound wave according to the vibration force; (e) according to the vibration sound wave, the multiple groups of mobile audio collection units generate a vibration audio signal including multiple vibration audio unit signals, and output it to a control and analysis device; wherein, the corresponding vibration audio signals generated during the period when the multiple groups of mobile audio collection units arrive at multiple stop points are used as a vibration audio recognition effective section; and (f) the corresponding vibration audio recognition effective sections generated by the multiple groups of mobile audio collection units during the period when they stop at multiple stop points are collected and combined to form multiple vibration audio unit recognition signals, so as to provide the control and analysis device with judgment on whether the multiple vibration audio unit recognition signals have abnormal sound phenomena.

[0025] Preferably, the peripheral interface device includes at least one key mechanical structure.

[0026] Preferably, the at least one audio collector can be any one of a microphone and a sound guide tube.

[0027] Preferably, the moving distances of any one of the plurality of moving track segments are equal, or the moving distances of at least two of the plurality of moving track segments are unequal.

[0028] Preferably, the multiple groups of mobile audio collection units each form a starting moving trajectory segment and an ending moving trajectory segment before entering the area of ​​the mechanism to be tested of the peripheral interface device and after leaving the area of ​​the mechanism to be tested; wherein any moving trajectory sequentially includes the starting moving trajectory segment, multiple moving trajectory segments and a number of stop points spaced between the multiple moving trajectory segments, and the ending moving trajectory segment.

[0029] Preferably, the moving distance of any one of the starting moving track segment and the ending moving track segment are both equal and smaller than the moving distance of any one of the plurality of moving track segments.

[0030] Preferably, the moving time required for the multiple groups of mobile audio collection units in any one of the multiple moving trajectory segments, the staying time required for the multiple groups of mobile audio collection units at any one of the multiple stopping points, and the moving time required for the multiple groups of mobile audio collection units in any one of the starting moving trajectory segment and the ending moving trajectory segment are all equal to each other.

[0031] Preferably, the test sub-signal may be one of a sweep test sub-signal and a pink noise test sub-signal, so that the vibration simulation mechanism generates the vibration force, and the peripheral interface device generates the vibration sound wave according to the vibration force.

[0032] The beneficial effect of the present invention is that the abnormal sound detection device and the abnormal sound detection method used therein proposed by the present invention can indeed adapt to different types of abnormal sound detection signals, and can efficiently and quickly perform abnormal sound analysis of vibration audio signals.

[0033] In order to better understand the above and other aspects of the present invention, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an example diagram of the specific implementation concept of a preferred embodiment of the present invention.

[0035] Figure 2A for Figure 1 A mobile audio collection device having multiple groups of mobile audio collection units in a preferred embodiment of the present invention forms a specific implementation concept example diagram of multiple moving tracks above a mechanism under test area of ​​a peripheral interface device.

[0036] Figure 2B for Figure 1 A specific implementation concept example diagram of a vibration audio signal including multiple vibration audio unit signals generated by multiple groups of mobile audio collection units in a preferred embodiment of the present invention.

[0037] Figure 3 for Figure 2A and Figure 2B A specific implementation concept example diagram is provided for combining the corresponding vibration audio unit signals generated by the multiple groups of mobile audio collection units during a number of stop points to form multiple vibration audio unit identification signals.

[0038] Figure 4A and Figure 4B It is a schematic diagram of the implementation steps of a preferred implementation concept of the present invention.

[0039] The reference numerals are as follows:

[0040] 10: Abnormal sound detection device

[0041] 11: Vibration simulation mechanism

[0042] 111: Detection stage

[0043] 112: Institutional ontology

[0044] 1121: Upper cover

[0045] 1122: Base

[0046] 113: Vibration generator

[0047] 115: Anti-vibration components

[0048] 12: Mobile audio collection device

[0049] 121: Mobile mechanism

[0050] 13: Control and analysis device

[0051] A1~A8:Stop point

[0052] D: Peripheral interface device (key mechanical structure)

[0053] L1~L6:Movement trajectory

[0054] M1~M7:Moving track section

[0055] R1: Starting moving track segment

[0056] R2: End the moving track segment

[0057] S: Vibration audio signal

[0058] S1~S6: Vibration audio unit signal

[0059] S1'~S6': Vibration audio unit identification signal

[0060] S101, S103, S105, S107, S109, S111, S113, S115, S117: Vibration audio segment (vibration audio recognition invalid segment)

[0061] S102, S104, S106, S108, S110, S112, S114, S116: Vibration audio segment (vibration audio recognition valid segment)

[0062] T: Abnormal sound detection signal

[0063] T1: Mobile control sub-signal

[0064] T2: Test sub-signal

[0065] U1~U6: Mobile audio collection unit

[0066] V: Vibration sound wave

[0067] P0~P6: Steps DETAILED DESCRIPTION

[0068] The following embodiments are provided for detailed description. The embodiments are only used as examples and do not limit the scope of the invention. In addition, the drawings in the embodiments omit unnecessary elements or elements that can be completed by conventional techniques to clearly show the technical features of the invention.

[0069] See also Figure 1 , which is a conceptual diagram of a preferred embodiment of the present invention. In addition, please refer to Figure 2A , which is Figure 1 A mobile audio collection device having multiple groups of mobile audio collection units in a preferred embodiment of the present invention forms a specific implementation concept example diagram of multiple moving tracks above a mechanism under test area of ​​a peripheral interface device.

[0070] Prophecy, in Figure 1 In the present invention, an abnormal sound detection device 10 is used to detect a peripheral interface device D (for example, a key mechanical structure); wherein the abnormal sound detection device 10 at least includes: a vibration simulation mechanism 11, a mobile audio collection device 12 and a control and analysis device 13.

[0071] In a preferred embodiment, the vibration simulation mechanism 11 comprises: a detection platform 111 , a mechanism body 112 for accommodating the key mechanical structure D, and a vibration generator 113 adjacent to the mechanism body 112 .

[0072] The mechanism body 112 is disposed on the detection platform 111 via a plurality of vibration-proof elements 115 , and the plurality of vibration-proof elements 115 disposed between the detection platform 111 and the mechanism body 112 can be used as a buffer structure between the detection platform 111 and the mechanism body 112 .

[0073] In addition, the mechanism body 112 at least includes a top cover 1121 and a base 1122, so that the key mechanical structure D is disposed between the top cover 1121 and the base 1122; wherein, in a preferred approach, the vibration generator 113 can be disposed adjacent to or attached to the base 1122, but the present invention is not limited thereto.

[0074] Furthermore, the mobile audio collection device 12 is close to the mechanism body 112 and has at least a moving mechanism 121 capable of performing a moving operation and a driving motor (not shown) capable of driving the moving mechanism 121 to perform the moving operation.

[0075] A preferred embodiment of the present invention is that the mobile audio collection device 12 has multiple groups of mobile audio collection units installed on the mobile mechanism 121, and any group of mobile audio collection units has at least one audio collector; wherein, taking this embodiment as an example, the multiple groups of mobile audio collection units in the present invention are described by taking six groups of mobile audio collection units U1~U6 as an example, and any group of mobile audio collection units among the six groups of mobile audio collection units U1~U6 is only described by taking the example of including only one audio collector, and the present invention is not limited to this.

[0076] Of course, the audio collector used in the present invention can be any one of a microphone and a sound guide tube, and the present invention is not limited thereto.

[0077] In addition, the control and analysis device 13 is used to output an abnormal sound detection signal T; wherein the abnormal sound detection signal T includes a movement control sub-signal T1 and a test sub-signal T2, which are respectively used to be output to the mobile audio collection device 12 and the vibration simulation mechanism 13;.

[0078] Among them, one of the main technical features of the present invention is that the mobile control sub-signal T1 is used to enable the six groups of mobile audio collection units U1~U6 in the mobile audio collection device 12 to form multiple moving trajectories (for example, forming six moving trajectories L1~L6) above a test mechanism area of ​​the peripheral interface device D in a go / stop moving mode; wherein any moving trajectory includes multiple moving trajectory segments (for example, seven moving trajectory segments M1~M7) and a number of stop points (for example, eight stop points A1~A8) spaced between the multiple moving trajectory segments M1~M7.

[0079] In addition, the six groups of mobile audio collection units U1~U6 each form a starting moving trajectory segment R1 and an ending moving trajectory segment R2 before entering the area of ​​the mechanism to be tested of the peripheral interface device D and after leaving the area of ​​the mechanism to be tested; in other words, any one of the multiple moving trajectories L1~L6 sequentially includes the starting moving trajectory segment R1, multiple moving trajectory segments M1~M7 and a number of stop points A1~A8 spaced between the multiple moving trajectory segments, and the ending moving trajectory segment R2.

[0080] Furthermore, the moving distances of any one of the plurality of moving track segments M1 - M7 are all equal (for example, all can be set to 45 mm), or the moving distances of at least two of the plurality of moving track segments M1 - M7 are unequal.

[0081] In addition, the moving distance of any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2 are equal distances, and are both smaller than the moving distance of any one of the multiple moving trajectory segments M1 to M7; for example, taking the present embodiment as an example, the moving distance of any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2 is approximately half (1 / 2) of the moving distance of any one of the multiple moving trajectory segments M1 to M7. For example, the moving distance of any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2 can be set to 22.5 mm.

[0082] As for the moving time required for the six groups of mobile audio collection units U1~U6 in any one of the multiple moving trajectory segments M1~M7, the staying time required for the six groups of mobile audio collection units U1~U6 at any one of the multiple stopping points A1~A8, and the moving time required for the six groups of mobile audio collection units U1~U6 in any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2, all three are equal to each other; for example, all three can be set to 2 seconds.

[0083] Thus, the total time required for any one of the plurality of moving trajectories L1 to L6 is, for example, 2+7*2+8*2+2=34 (seconds), and the total distance of any one of the moving trajectories is, for example, 22.5mm+7*45mm+22.5mm=360mm.

[0084] Based on this, when the moving time and moving distance required for the six groups of mobile audio collection units U1~U6 in any one of the multiple moving trajectory segments M1~M7, as well as the moving time and moving distance required for any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2 are planned, the moving speed of the six groups of mobile audio collection units U1~U6 between different moving trajectory segments such as the multiple moving trajectory segments M1~M7, the starting moving trajectory segment R1 and the ending moving trajectory segment R2 can be obtained.

[0085] Of course, the present invention can also flexibly adjust the moving time and moving distance required for any one of the above-mentioned multiple moving trajectory segments M1~M7, the dwelling time required for any one of the multiple stop points A1~A8, and the moving time and moving distance required for any one of the starting moving trajectory segment R1 and the ending moving trajectory segment R2 according to the change in the total length of the area of ​​the mechanism to be tested of the peripheral interface device D and / or actual application requirements, and the present invention is not limited to this.

[0086] On the other hand, the vibration simulation mechanism 11 in the present invention is used to generate a vibration force according to a test sub-signal T2 in the abnormal sound detection signal T generated by the control and analysis device 13, and to make the peripheral interface device D generate a vibration sound wave V according to the vibration force. In this way, the six groups of mobile audio collection units U1~U6 can generate a vibration audio signal S including six vibration audio unit signals S1~S6 according to the vibration sound wave V, and output it to the control and analysis device 13, so that the control and analysis device 13 can further determine whether there is an abnormal sound phenomenon.

[0087] One of the technical features of the present invention is that, since the six groups of mobile audio collection units U1~U6 will stay at any one of the multiple stop points A1~A8 for a period of time, the test sub-signal provided to the vibration simulation mechanism 11 at this moment, whether it is a sweep test sub-signal or a pink noise test sub-signal, can make the vibration simulation mechanism 11 generate the vibration force, and make the peripheral interface device D generate the vibration sound wave V according to the vibration force. Moreover, different areas of the mechanism to be tested in the peripheral interface device D can all obtain tests with test frequencies that are close to consistency. At the same time, there will be audio collection units that can stably receive sound during the stay time. Therefore, the present invention can avoid the defects disclosed in the aforementioned known technology.

[0088] Among them, the so-called swept frequency test sub-signal refers to a test sub-signal in which the test frequency range gradually increases from zero to 20KHZ or gradually decreases from 20KHZ to zero within a certain time range, and the pink noise test sub-signal refers to a mixed frequency test sub-signal of 0 to 20KHz with a power spectral density (PSD) that is higher at low frequencies and decreases from low frequencies to high frequencies; and the test sub-signal T2 used in the present invention is not limited to the swept frequency test sub-signal or the pink noise test sub-signal.

[0089] Please see again Figure 2B , which is Figure 1 A specific implementation concept example diagram of the vibration audio signal S including the six vibration audio unit signals S1~S6 generated by the six groups of mobile audio collection units U1~U6 in a preferred embodiment of the present invention; wherein any one of the six vibration audio unit signals S1~S6 is used to indicate whether the corresponding any one of the six groups of mobile audio collection units U1~U6 is in a moving state or in a stationary state.

[0090] At the same time, any one of the six vibration audio unit signals S1~S6 can be further divided into vibration audio segments S101, S103, S105, S107, S109, S111, S113, S115, S117 collected when any one of the six groups of mobile audio collection units U1~U6 is in the moving state (i.e., moving in the starting moving trajectory segment R1, multiple moving trajectory segments M1~M7 or the ending moving trajectory segment R2), and vibration audio segments S102, S104, S106, S108, S110, S112, S114, S116 collected when any one of the six groups of mobile audio collection units U1~U6 is located at multiple stopping points A1~A8.

[0091] That is to say, multiple vibration audio segments S101, S103, S105, S107, S109, S111, S113, S115, and S117 represent that the six groups of mobile audio collection units U1~U6 are in the mobile state. At this moment, the corresponding vibration audio signals collected by the six groups of mobile audio collection units U1~U6 are usually noise signals (for example, background noise or various noise signals such as background noise or operation noise of the driving motor). Therefore, these vibration audio segments S101, S103, S105, S107, S109, S111, S113, S115, and S117 can all be regarded as invalid segments for vibration audio recognition.

[0092] Furthermore, since multiple vibration audio segments S102, S104, S106, S108, S110, S112, S114, and S116 represent that the six groups of mobile audio collection units U1~U6 are staying at multiple stop points A1~A8, the six groups of mobile audio collection units U1~U6 are generating corresponding vibration audio signals based on the vibration sound wave V. These corresponding vibration audio signals can all be regarded as effective segments for vibration audio identification.

[0093] Based on this, another technical feature of the present invention is that the corresponding vibration audio recognition effective sections S102, S104, S106, S108, S110, S112, S114, S116 generated by the six groups of mobile audio collection units U1-U6 during the period of A1-A8 at multiple stop points can be collected and combined to form Figure 3 The multiple vibration audio unit identification signals S1'~S6' shown are used to provide the control and analysis device 13 with the ability to more quickly determine whether the multiple vibration audio unit identification signals S1'~S6' have abnormal sound phenomena without being interfered by the above-mentioned multiple vibration audio identification invalid sections S101, S103, S105, S107, S109, S111, S113, S115, and S117.

[0094] certainly, Figure 3 As shown, Figure 2A and Figure 2B A specific implementation concept example diagram of the corresponding vibration audio unit signals generated by the six groups of mobile audio collection units U1~U6 during the period of multiple stop points A1~A8, and combined to form multiple vibration audio unit identification signals S1'~S6'; wherein, taking this embodiment as an example, it can be found that in the vibration audio identification effective sections S104 and S110, it can be found that there are obvious abnormal sound signals generated, therefore, compared with Figure 2A It can be seen that at the stop points A2 and A5 ( Figure 2A The dotted circle in the figure is the mechanism area corresponding to the effective sections S104 and S110 for generating the vibration audio recognition, and this is where the assembly structure defects may be located.

[0095] Of course, in this embodiment, Figure 2A Multiple stop points A2, A5 ( Figure 2A In the dotted circle in the middle), the corresponding multiple vibration audio identification valid sections S104 and S110 in all the vibration audio unit identification signals S1'-S6' all indicate that abnormal sound occurs, but the present invention is not limited to this.

[0096] Please refer to Figure 2A and Figure 2BFor other embodiments (not shown), Figure 2A The stop point A2 corresponds to Figure 2B For example, assuming Figure 2B The vibration audio identification valid sections S104 that display a portion of the vibration audio unit identification signals (for example, S1', S2', S6') all have abnormal sound phenomena (noise signals), but the vibration audio identification valid sections S104 of the remaining vibration audio unit identification signals (for example, S3', S4', S5') do not display abnormal sound phenomena (no noise signals). In this way, this embodiment can illustrate that the present invention can more accurately locate the location of assembly structure defects (for example, more clearly point out that the mechanism assembly defects appear at the intersection of the moving trajectories L1, L2 and L6 and the stop point A2).

[0097] Based on the above description and the above Figures 1 to 3 See Figure 4A and Figure 4B , which is a method for detecting abnormal sound of the present invention, applied to detecting the peripheral interface device D, and at least comprising the following steps:

[0098] Step P0: Start;

[0099] Step P1: providing a vibration simulation mechanism capable of accommodating a peripheral interface device D;

[0100] Step P2: arranging a mobile audio collection device 12 close to the vibration simulation mechanism 11; wherein the mobile audio collection device 12 has a plurality of mobile audio collection units U1-U6, and any group of mobile audio collection units has at least one audio collector;

[0101] Step P3: According to a movement control sub-signal T1 in an abnormal sound detection signal T, the plurality of mobile audio collection units U1-U6 are driven to form a plurality of movement tracks L1-L6 above a region of a mechanism to be tested of the peripheral interface device D in a walk / stop movement mode; wherein any movement track includes a plurality of movement track segments M1-M7 and a plurality of stop points A1-A8 spaced between the plurality of movement track segments;

[0102] Step P4: according to a test sub-signal T2 in the abnormal sound detection signal T, the vibration simulation mechanism 11 generates a vibration force, and the peripheral interface device D generates a vibration sound wave V according to the vibration force;

[0103] Step P5: According to the vibration sound wave V, the plurality of mobile audio collection units U1-U6 respectively generate a plurality of vibration audio unit signals S1-S6, and output them to a control and analysis device 13; wherein the corresponding vibration audio signal generated during the period when any one of the plurality of mobile audio collection units U1-U6 arrives at a plurality of stop points A1-A8 is used as the corresponding vibration audio recognition effective section S102, S104, S106, S108, S110, S112, S114, S116; and

[0104] Step P6: Collect a plurality of corresponding vibration audio identification valid sections S102, S104, S106, S108, S110, S112, S114, S116 generated by any one of the plurality of mobile audio collection units U1~U6 during a plurality of stop points A1~A8, and respectively combine them to form a plurality of vibration audio unit identification signals S1'~S6', so as to provide the control and analysis device 13 with judgment on whether the plurality of vibration audio unit identification signals S1'~S6' have abnormal sound phenomenon.

[0105] In summary, the abnormal sound detection device and the abnormal sound detection method used therein proposed in the present invention can indeed adapt to different types of abnormal sound detection signals, and can efficiently and quickly perform abnormal sound analysis of vibration audio signals; therefore, the present invention is indeed a work of great industrial value.

[0106] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. A person skilled in the art of the present invention may make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the attached claims.

Claims

1. An abnormal sound detection device, used for detecting a peripheral interface device, comprising: A vibration simulation mechanism, having a mechanism body capable of accommodating the peripheral interface device, and the vibration simulation mechanism can generate a vibration force so that the peripheral interface device generates a vibration sound wave according to the vibration force; a mobile audio collection device, close to the mechanism body, the mobile audio collection device is used to collect the vibration sound waves and generate a vibration audio signal accordingly; as well as a control and analysis device electrically connected to the vibration simulation mechanism and the mobile audio collection device, the control and analysis device being used to output an abnormal sound detection signal to control the vibration simulation mechanism to generate the vibration force, and to input the vibration audio signal generated by the mobile audio collection device to detect and analyze whether there is an abnormal sound phenomenon therein; Among them, the abnormal sound detection signal includes a movement control sub-signal and a test sub-signal, which are respectively used to output to the mobile audio collection device and the vibration simulation mechanism; wherein the movement control sub-signal is used to enable the mobile audio collection device to form multiple movement trajectory segments and a plurality of stop points between the multiple movement trajectory segments above the peripheral interface device in a walk / stop movement mode, and use the corresponding vibration audio signal generated during the period when the mobile audio collection device reaches the multiple stop points as a vibration audio recognition effective section.

2. The abnormal sound detection device as described in claim 1, wherein the peripheral interface device includes at least a key mechanical structure.

3. The abnormal sound detection device as claimed in claim 1, wherein the vibration simulation mechanism comprises: The mechanism body is used to accommodate the peripheral interface device; as well as A vibration generator is adjacent to the mechanism body and electrically connected to the control and analysis device. The vibration generator is used to generate the vibration force according to the test sub-signal and transmit it to the peripheral interface device in the mechanism body.

4. The abnormal sound detection device as claimed in claim 3, wherein the mechanism body at least comprises an upper cover and a base, so that the peripheral interface device is disposed between the upper cover and the base; wherein, The vibration generator is adjacent to or attached to the base.

5. The abnormal sound detection device as described in claim 3, wherein the test sub-signal can be one of a swept frequency test sub-signal and a pink noise test sub-signal, so that the vibration simulation mechanism generates the vibration force, and the peripheral interface device generates the vibration sound wave according to the vibration force.

6. The abnormal sound detection device as claimed in claim 1, wherein the mobile audio collection device has a plurality of mobile audio collection units, and any group of mobile audio collection units has at least one audio collector; wherein, The at least one audio collector may be any one of a microphone and a sound guide tube.

7. The abnormal sound detection device as claimed in claim 6, wherein the mobile audio collection device has a driving motor, and the driving motor is used to execute the stop / go movement mode according to the movement control sub-signal, so that the multiple groups of mobile audio collection units form multiple movement tracks above a mechanism to be tested area of ​​the peripheral interface device; wherein, Any moving track includes a plurality of moving track segments and a plurality of stopping points spaced between the plurality of moving track segments.

8. The abnormal sound detection device as claimed in claim 7, wherein the moving distances of any one of the plurality of moving track segments are equal distances, or the moving distances of at least two of the plurality of moving track segments are unequal distances.

9. The abnormal sound detection device as claimed in claim 7, wherein the mobile audio collection device forms a starting moving track segment and an ending moving track segment respectively before entering the region of the mechanism to be tested of the peripheral interface device and after leaving the region of the mechanism to be tested; wherein, Any one of the movement tracks sequentially includes the starting movement track segment, a plurality of the movement track segments, a plurality of the stop points spaced between the plurality of the movement track segments, and the ending movement track segment. 10 . The abnormal sound detection device as claimed in claim 9 , wherein the moving distance of any one of the starting moving track segment and the ending moving track segment are both equal and smaller than the moving distance of any one of the plurality of moving track segments.

11. The abnormal sound detection device as described in claim 9, wherein the moving time required for the mobile audio collection device in any of the multiple moving trajectory segments, the staying time required for the mobile audio collection device at any of the multiple stopping points, and the moving time required for the mobile audio collection device in any of the starting moving trajectory segment and the ending moving trajectory segment are all equal to each other.

12. An abnormal sound detection device as described in claim 1, wherein the control and analysis device collects the corresponding vibration audio recognition effective sections generated by the mobile audio collection device during the multiple stop points, and combines them to form a vibration audio recognition signal, so as to determine whether the vibration audio recognition signal has an abnormal sound phenomenon.

13. A method for detecting abnormal sound, applied to detecting a peripheral interface device, comprising at least the following steps: (a) providing a vibration simulation mechanism capable of accommodating the peripheral interface device; (b) arranging a mobile audio collection device close to the vibration simulation mechanism; wherein, The mobile audio collection device has a plurality of mobile audio collection units, and any group of mobile audio collection units has at least one audio collector; (c) according to a movement control sub-signal in an abnormal sound detection signal, driving the plurality of mobile audio collection units to form a plurality of movement tracks above a region of a mechanism to be tested of the peripheral interface device in a walk / stop movement mode; wherein any movement track includes a plurality of movement track segments and a plurality of stop points spaced between the plurality of movement track segments; (d) causing the vibration simulation mechanism to generate a vibration force according to a test sub-signal in the abnormal sound detection signal, and causing the peripheral interface device to generate a vibration sound wave according to the vibration force; (e) Based on the vibration sound wave, the multiple groups of mobile audio collection units generate a vibration audio signal including multiple vibration audio unit signals, and output it to a control and analysis device; wherein the corresponding vibration audio signal generated during the period when the multiple groups of mobile audio collection units arrive at the multiple said stopping points is used as a vibration audio recognition effective section; and (f) Collecting the corresponding vibration audio identification effective sections generated by the multiple groups of mobile audio collection units during the multiple stop points, and combining them to form multiple vibration audio unit identification signals, so as to provide the control and analysis device with a judgment on whether the multiple vibration audio unit identification signals have abnormal sound phenomena.

14. The abnormal sound detection method as claimed in claim 13, wherein the peripheral interface device comprises at least one key mechanical structure.

15. The abnormal sound detection method as claimed in claim 13, wherein the at least one audio collector can be any one of a microphone and a sound guide tube. 16 . The abnormal sound detection method as claimed in claim 13 , wherein the moving distances of any one of the plurality of moving track segments are equal distances, or the moving distances of at least two of the plurality of moving track segments are unequal distances.

17. The abnormal sound detection method as claimed in claim 13, wherein the plurality of mobile audio collection units respectively form a starting moving track segment and an ending moving track segment before entering the region of the mechanism to be tested of the peripheral interface device and after leaving the region of the mechanism to be tested; wherein, Any moving track includes the starting moving track segment, a plurality of moving track segments, a plurality of stop points spaced between the plurality of moving track segments, and the ending moving track segment in sequence. 18 . The abnormal sound detection method as claimed in claim 17 , wherein the moving distance of any one of the starting moving track segment and the ending moving track segment are both equal and smaller than the moving distance of any one of the plurality of moving track segments.

19. The abnormal sound detection method as described in claim 17, wherein the moving time required for the multiple groups of mobile audio collection units in any of the multiple moving trajectory segments, the staying time required for the multiple groups of mobile audio collection units at any of the multiple stopping points, and the moving time required for the multiple groups of mobile audio collection units in any of the starting moving trajectory segment and the ending moving trajectory segment are all equal to each other.

20. The abnormal sound detection method as claimed in claim 13, wherein the test sub-signal can be one of a swept frequency test sub-signal and a pink noise test sub-signal, so that the vibration simulation mechanism generates the vibration force, and the peripheral interface device generates the vibration sound wave according to the vibration force.

Images